1 /*
2 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @bug 6831794
27 * @summary Test X11CNS charset
28 */
29
30 import java.nio.charset.*;
31 import java.nio.*;
32 import java.util.*;
33
34 public class TestX11CNS {
35 static char[] decode(byte[] bb, Charset cs)
36 throws Exception {
37 CharsetDecoder dec = cs.newDecoder();
38 ByteBuffer bbf = ByteBuffer.wrap(bb);
39 CharBuffer cbf = CharBuffer.allocate(bb.length);
40 CoderResult cr = dec.decode(bbf, cbf, true);
41 if (cr != CoderResult.UNDERFLOW) {
42 System.out.println("DEC-----------------");
43 int pos = bbf.position();
44 System.out.printf(" cr=%s, bbf.pos=%d, bb[pos]=%x,%x,%x,%x%n",
45 cr.toString(), pos,
46 bb[pos++]&0xff, bb[pos++]&0xff,bb[pos++]&0xff, bb[pos++]&0xff);
47 throw new RuntimeException("Decoding err: " + cs.name());
48 }
49 char[] cc = new char[cbf.position()];
50 cbf.flip(); cbf.get(cc);
51 return cc;
52
53 }
54
55 static byte[] encode(char[] cc, Charset cs)
56 throws Exception {
57 ByteBuffer bbf = ByteBuffer.allocate(cc.length * 4);
58 CharBuffer cbf = CharBuffer.wrap(cc);
59 CharsetEncoder enc = cs.newEncoder();
60
61 CoderResult cr = enc.encode(cbf, bbf, true);
62 if (cr != CoderResult.UNDERFLOW) {
63 System.out.println("ENC-----------------");
64 int pos = cbf.position();
65 System.out.printf(" cr=%s, cbf.pos=%d, cc[pos]=%x%n",
66 cr.toString(), pos, cc[pos]&0xffff);
67 throw new RuntimeException("Encoding err: " + cs.name());
68 }
69 byte[] bb = new byte[bbf.position()];
70 bbf.flip(); bbf.get(bb);
71 return bb;
72 }
73
74 static char[] getChars(Charset newCS, Charset oldCS) {
75 CharsetEncoder enc = oldCS.newEncoder();
76 CharsetEncoder encNew = newCS.newEncoder();
77 char[] cc = new char[0x10000];
78 int pos = 0;
79 int i = 0;
80 while (i < 0x10000) {
81 if (i == 0x4ea0 || i == 0x51ab || i == 0x52f9) {
82 i++;continue;
83 }
84 if (enc.canEncode((char)i) != encNew.canEncode((char)i)) {
85 System.out.printf(" Err i=%x%n", i);
86 //throw new RuntimeException("canEncode() err!");
87 }
88 if (enc.canEncode((char)i)) {
89 cc[pos++] = (char)i;
90 }
91 i++;
92 }
93 return Arrays.copyOf(cc, pos);
94 }
95
96 static void compare(Charset newCS, Charset oldCS) throws Exception {
97 if (newCS == null)
98 return; // does not exist on this platform
99 char[] cc = getChars(newCS, oldCS);
100 System.out.printf(" Diff <%s> <%s>...%n", newCS.name(), oldCS.name());
101
102 byte[] bb1 = encode(cc, newCS);
103 byte[] bb2 = encode(cc, oldCS);
104
105 if (!Arrays.equals(bb1, bb2)) {
106 System.out.printf(" encoding failed!%n");
107 }
108 char[] cc1 = decode(bb1, newCS);
109 char[] cc2 = decode(bb1, oldCS);
110 if (!Arrays.equals(cc1, cc2)) {
111 for (int i = 0; i < cc1.length; i++) {
112 if (cc1[i] != cc2[i]) {
113 System.out.printf("i=%d, cc1=%x cc2=%x, bb=<%x%x>%n",
114 i,
115 cc1[i]&0xffff, cc2[i]&0xffff,
116 bb1[i*2]&0xff, bb1[i*2+1]&0xff);
117 }
118
119 }
120
121 System.out.printf(" decoding failed%n");
122 }
123 }
124
125 private static Charset getCharset(String czName)
126 throws Exception {
127 try {
128 return (Charset)Class.forName(czName).newInstance();
129 } catch (ClassNotFoundException e){}
130 return null; // does not exist
131 }
132
133 public static void main(String[] args) throws Exception {
134 compare(getCharset("sun.awt.motif.X11CNS11643P1"),
135 new X11CNS11643P1());
136
137 compare(getCharset("sun.awt.motif.X11CNS11643P2"),
138 new X11CNS11643P2());
139
140 compare(getCharset("sun.awt.motif.X11CNS11643P3"),
141 new X11CNS11643P3());
142
143 }
144 }